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Description

To use the RX23W Bluetooth feature, a protocol stack conforming to the Bluetooth specification is required. Also, the Bluetooth-compliant profiles and mesh software enhance your Bluetooth product interoperability in a wide application area.

Target Devices

Type Title Date
Application Note PDF 3.62 MB 日本語
The RX23W BLE FIT module provides a Bluetooth® Low Energy implementation compliant with Bluetooth Core Specification v5.0. It supports core BLE features through the R_BLE API and enables application development using e² studio. Demo projects and FreeRTOS-based configurations support efficient evaluation and product development.
Application Note PDF 1.86 MB 日本語
The RX23W Mesh FIT module enables Bluetooth® Mesh networking on RX23W devices using Firmware Integration Technology. It supports many-to-many wireless communication compliant with Bluetooth Mesh Profile and Model specifications and provides provisioning, relay, proxy, friend, and low power features. The module works with the BLE FIT module and offers APIs and demo projects to accelerate mesh application development on e² studio.
Application Note PDF 1.06 MB 日本語
The RX23W Group Bluetooth Mesh Stack enables many-to-many wireless communication on RX23W devices in compliance with Bluetooth Mesh Networking specifications. It supports mesh architecture, provisioning, configuration, proxy, friend, and low power features, along with Generic and Vendor models. The stack provides APIs and reference implementations to support the design and implementation of Bluetooth Mesh applications on RX23W platforms.
Application Note PDF 1.03 MB 日本語
The RX23W Group Bluetooth Mesh Stack enables many-to-many wireless communication compliant with Bluetooth Mesh Networking specifications. It supports provisioning, configuration, model communication, and node removal phases and allows developers to evaluate and develop mesh networks on RX23W devices. The stack works with demo projects and a mobile application to streamline mesh network setup, operation, and application development.
Manual - Development Tools PDF 2.10 MB 日本語
The Bluetooth® Low Energy Protocol Stack Basic Package for the RX23W Group provides a Bluetooth Core Specification v5.0–compliant BLE software platform for application development. Delivered as a BLE FIT module, it offers core BLE functionality through the R_BLE API and supports extended PHY features. Demo projects and flexible configurations support efficient evaluation and product development.
Application Note PDF 2.88 MB 日本語
AI-generated Summary: The Bluetooth Test Tool Suite (BTTS) controls Renesas Bluetooth Low Energy MCUs via a Windows PC and USB serial connection to evaluate RF, beacon, and data communication functions based on Bluetooth 5.0. It operates by sending HCI commands through a GUI, displaying API calls and events for development reference. Supported MCUs include RX23W, RA4W1, and RE01B groups. The tool requires specific EVB boards and Windows 10 (64-bit). It supports installation, operation, logging, RF evaluation, beacon transmission/reception, data throughput measurement, pairing, and radio law certification testing. The suite helps developers test and validate Bluetooth functionality efficiently.
Application Note PDF 2.24 MB 日本語
AI-generated Summary: The guide explains how to develop Bluetooth Low Energy (BLE) profiles using Renesas development tools such as QE for BLE and e2 studio. It covers the BLE communication protocol based on the Generic Attribute Profile (GATT), detailing client-server architecture, services, characteristics, and descriptors. The document outlines setting up the development environment, creating BLE communication projects for RX23W, RA4W1, and RE01B groups, and implementing profile programs including security, data operations, and connection management. It also provides references to related manuals and software packages to support comprehensive BLE profile development.
Application Note PDF 3.80 MB 日本語
AI-generated Summary: The guide details the development of Bluetooth Low Energy (BLE) applications using the RX23W Group. It covers hardware and software requirements, communication features, and the BLE protocol stack operation. The document explains configuration options, user code implementation, event handling, advertising, scanning, connection management, communication parameters, and security features such as pairing, bonding, and encryption. It also includes profiles, services, debugging techniques, and practical examples for BLE application development.
Application Note PDF 176 KB 日本語
AI-generated Summary: The BLE QE Utility module integrates into QE for BLE (RA, RE, RX) v1.40, enabling easy configuration of Bluetooth Low Energy profiles via GUI. It supports various standard BLE services such as Battery, Heart Rate, and Environmental Sensing. The module generates programs compatible with the BLE protocol stack. The document details supported services, version updates, and improvements including FreeRTOS support, enhanced code protection, and API fixes for custom and SIG standard profiles.
Application Note PDF 1.19 MB 日本語
AI-generated Summary: Bluetooth LE communication uses the Generic Attribute Protocol (GATT) to enable client-server interactions through profiles composed of one or more services. The server holds profile data in a GATT database, which the client accesses and can receive notifications or indications from. The Bluetooth LE software structure includes a profile framework, GATT database, and API programs that allow user applications to interact with profiles. Services can be SIG adopted or custom-defined to extend functionality beyond standard specifications.
Application Note PDF 4.44 MB 日本語
AI-generated Summary: The firmware update over the air (OTA) sample program enables updating RX23W firmware via Bluetooth Low Energy from Android, iOS smartphones, or Windows PC. It supports updating either the user application alone or both the user application and BLE protocol stack. The package includes OTA client and server sample projects, application notes in English and Japanese, and project files for Android, iOS, and Python applications. The document details setup, operation, system structure, firmware update procedures, and sample application development.
Application Note PDF 1.59 MB 日本語
AI-generated Summary: The RX23W MCU supports concurrent operation of Bluetooth Low Energy (BLE) and USB 2.0 communications. Efficient task management ensures BLE and USB modules operate without delay by using queues processed in main loops or FreeRTOS tasks. Applications must minimize long processing times and interrupt disable periods to maintain communication performance. The document covers system configuration, task priorities, power-saving transitions, clock settings, and provides sample programs and API usage for BLE and USB integration.
Application Note PDF 2.54 MB 日本語
AI-generated Summary: TryBT is an Android sample application enabling Bluetooth Low Energy communication with Renesas evaluation boards RX23W, RA4W1, and RE01B. It supports Android OS 6.0 or later and provides source code for customization. The app demonstrates device scanning, connection, and interaction with evaluation boards, including LED control and data notifications. The document details environment setup, firmware writing, app installation, operation, and customization steps. It also covers project structure, Bluetooth communication flow, and necessary software tools like Android Studio and Renesas Flash Programmer.
Application Note PDF 6.40 MB 日本語
AI-generated Summary: TryBT is an iOS sample application enabling Bluetooth Low Energy communication with Renesas evaluation boards RX23W, RA4W1, and RE01B. It supports iOS 13.0 or later and allows users to customize and reuse the source code. The document details setting up the development environment, including installing Xcode, Homebrew, Ruby, CocoaPods, and configuring Apple Developer accounts. It guides through compiling, installing TryBT, writing firmware to evaluation boards, and basic app operations such as device scanning, connection, and demo screens. The app uses Swift and requires a paid Apple Developer membership for deployment.
Application Note PDF 1.06 MB 日本語
AI-generated Summary: The sample program demonstrates how to implement Apple Notification Center Service (ANCS) client functionality on the RX23W target board using Bluetooth Low Energy. It enables connection and pairing with iOS devices, allowing the RX23W to receive and request detailed notifications from iOS. The program supports advertising with Resolvable Private Address, service discovery, pairing, and data communication via ANCS commands. The document includes hardware and software requirements, operation flow, API details, and development guidance using Renesas tools.
Application Note PDF 1.60 MB 日本語
AI-generated Summary: Highspeed communication using Bluetooth Low Energy (BLE) requires continuous data transmission and optimized GAP parameter settings. Sample programs enable two RX23W boards to connect automatically and measure bidirectional throughput using GATT. The programs include Central (GATT Client) and Peripheral (GATT Server) roles, with setup instructions for running environments and terminal configurations. The sample program controls communication via command line interface and configures GAP parameters and MTU to maximize speed. Detailed project structures, API references, and BLE protocol operations such as connection intervals, PHY settings, and packet lengths are covered.
Tool News - Release PDF 716 KB 日本語
17 items

Sample Code

Sample Code

Filters
Type Title Date Date
Sample Code
[Software=RX Driver Package|V1.50],[Toolchains=CC-RX|V2.08.00;IAR Compiler for RX|v.4.20.1]
Log in to Download ZIP 64.46 MB
Application: Consumer Electronics, Industrial
Compiler: CC-RX, ICCRX Function: Application Example, Driver or Library IDE: e2 studio, IAR EWRX
Sample Code
[Software=RX Driver Package|V1.50],[Toolchains=CC-RX|V2.08.01]
Log in to Download ZIP 76.72 MB
Application: Industrial
Compiler: CC-RX Function: Driver or Library IDE: e2 studio
Sample Code
Log in to Download ZIP 23.05 MB 日本語
Application: Industrial
Function: Communication Interface
Sample Code
[Software=RX Driver Package|V1.29],[Toolchains=CC-RX|V2.08.00]
Log in to Download ZIP 22.46 MB 日本語
Application: Consumer Electronics, Industrial
Compiler: CC-RX Function: Application Example IDE: e2 studio
Sample Code
Log in to Download ZIP 14.85 MB
Application: Consumer Electronics, Industrial
Compiler: CC-RX Function: Communication Interface IDE: e2 studio
Sample Code
Log in to Download ZIP 19.65 MB 日本語
Application: Consumer Electronics, Industrial
Compiler: CC-RX Function: Application Example IDE: e2 studio
Sample Code
Log in to Download ZIP 19.24 MB
Application: Consumer Electronics, Industrial
Compiler: CC-RL Function: Communication Interface IDE: e2 studio
Sample Code
Log in to Download ZIP 8.55 MB 日本語
Application: Consumer Electronics, Industrial
Compiler: JDK Function: Application Example, Communication Interface IDE: Android Studio
Sample Code
Log in to Download ZIP 12.30 MB
Application: Consumer Electronics, Industrial
Compiler: Swift Function: Application Example, Communication Interface IDE: Xcode
Sample Code
Log in to Download ZIP 7.26 MB
Application: Consumer Electronics, Industrial
Compiler: CC-RX Function: Communication Interface IDE: e2 studio
Sample Code
Log in to Download ZIP 60.92 MB Compiler: CC-RX IDE: e2 studio
11 items

Bluetooth Low Energy Protocol Stack Basic Package

Bluetooth Low Energy protocol stack basic package includes Bluetooth v5.0 compliant protocol stack library, API reference document for using the library and an application demo project for operation check.

Image
protocol-stack-rx-constitution

User's Manual

Bluetooth Low Energy Protocol Stack Basic Package User's Manual (PDF | English, 日本語)

Get the Latest Software

RX23W Group BLE Module Firmware Integration Technology Rev.2.62 (ZIP)

The Bluetooth Low Energy Protocol Stack (RX) provides three types of libraries. The Bluetooth features you need is selectable by each feature set. The All features set supports all Low Energy (LE) specifications in Bluetooth Core Specification v5.0.

FeatureVersion (Note1)All featuresBalanceCompact
Code size (CC-RX v2)All featuresBalanceCompact
LE Controller (1M PHY and LL)4.0lenslenslens
LE Host (L2CAP and Security Manager)4.0lenslenslens
Attribute Protocol and Generic Attribute Profile4.0lenslenslens
Appearance Data TypeCSA 2 (Note2)lenslenslens
Low Duty Cycle Directed Advertising4.1lenslenslens
32-bit UUID Support in LE4.1lenslenslens
LE L2CAP Connection Oriented Channel Support4.1lens
LE Link Layer Topology4.1lenslens
LE Ping4.1lenslenslens
LE Data Packet Length Extension4.2lenslenslens
LE Secure Connections4.2lenslenslens
Link Layer Privacy4.2lenslenslens
Link Layer Extended Scanner Filter Policies4.2lenslens
LE 2M PHY5.0lenslens
LE Coded PHY (Long Range)5.0lenslens
High Duty Cycle Non-Connectable Advertising5.0lenslenslens
LE Advertising Extensions5.0lens
LE Channel Selection Algorithm #25.0lenslens
GAP Role-Central / Peripheral
Observer / Broadcaster
Central / Peripheral
Observer / Broadcaster
Peripheral
Broadcaster
GATT Role-Client / ServerClient / ServerClient / Server
Concurrent Link-Up to 7Up to 7Up to 7
ROM182KB140KB125KB
RAM (Maximum configuration)38KB23KB23KB

lens  Available | — Unavailable

Notes

  1. Indicates the version of Bluetooth Core specification that was first introduced.
  2. CSA: Core Specification Addendum

Bluetooth Low Energy protocol stack basic package provides an application demo project that shows an example of protocol stack integration into your project and an example of user application implementation.
It notifies pressing push switch of Renesas evaluation board by Bluetooth communication and controls blinking of LED.
Control from a smartphone is also possible by using a general purpose BLE communication smartphone app such as GATTBrowser.

Image
protocol-stack-rx-demo

Bluetooth Low Energy Profiles

RX23W supports various profiles with Bluetooth certification.
Details of the specifications are published in Bluetooth GATT Specificationsopen_in_new on the Bluetooth SIG website.

Applications / fieldsProfile name / supported versionRelated services
HealthcareBlood Pressure ProfileBLP1.0.1BLSDIS    
Health Thermometer ProfileHTP1.0HTSDIS    
Heart Rate ProfileHRP1.0HRSDIS    
Glucose ProfileGLP1.0GLSDIS    
Pulse Oximeter ProfilePLXP1.0PLXSDISBASCTSBMS 
Continuous Glucose Monitoring ProfileCGMP1.0.1CGMSDISBMS   
Reconnection Configuration ProfileRCP1.0RCSBMS    
Insulin Delivery ProfileIDP1.0IDSDISBASCTSBMSIAS
Sports and fitnessCycling Power ProfileCPP1.1CPSDISBAS   
Cycling Speed and Cadence ProfileCSCP1.0CSCSDIS    
Running Speed and Cadence ProfileRSCP1.0RSCSDIS    
Location and Navigation ProfileLNP1.0LNSDISBAS   
Weight Scale ProfileWSP1.0WSSBCSDISBASCTSUDS
Fitness Machine ProfileFTMP1.0FTMSDISUDS   
Environmental Sensing ProfileESP1.0ESSDISBAS   
Radio tagFind Me ProfileFMP1.0IAS     
Proximity ProfilePXP1.0.1IASLLSTPS   
SmartphoneAlert Notification ProfileANP1.0ANS     
Phone Alert Status ProfilePASP1.0PASS     
Time ProfileTIP1.0CTSNDCSRTUS   
HID(Human Interface Device)HID over GATT ProfileHOGP1.0HIDSDISBAS   
Scan Parameters ProfileScPP1.0ScPS     
Industrial equipmentAutomation IO ProfileAIOP1.0AIOS     

Profiles are generated from QE for BLE [RA,RE,RX]. You can also design and generate custom profiles.
Download QE Utility Module to use QE for BLE.
For details on how to develop a profile, refer to the profile developer's guide.

QE for BLE [RA,RE,RX]

QE Utility Module

RX23W Group BLE QE Utility Module Firmware Integration Technology Rev.1.11 - Sample Code (ZIP)

Profile Developer's Guide

Bluetooth LE microprocessor / module Profile Developer's Guide Application Note Rev.1.10 (PDF | English, 日本語)

Bluetooth Mesh

A mesh software library that conforms to the Bluetooth Mesh Networking specification is provided.
Details of the specifications are published in Mesh Networking Specifications open_in_new on the Bluetooth SIG website.

Image
protocol-stack-rx-meshstack

Bluetooth Mesh Package

  • RX23W Bluetooth Mesh library
  • Generic On/Off Model sample program
  • Mesh mobile application for Android and iOS
  • Startup guide
  • Development guide
  • API reference document

Mesh Stack Package

RX23W Group Bluetooth Mesh Module Using Firmware Integration Technology Rev.1.32 (ZIP)

Startup Guide

RX23W Group Bluetooth Mesh Stack Startup Guide Rev.1.32 (PDF | English, 日本語)

Mesh Development Guide

RX23W Group Bluetooth Mesh Stack Development Guide Rev.1.32 (PDF | English, 日本語)

Get Bluetooth Low Energy protocol stack to use the mesh stack package.

Support Communities

  1. DA14535MOD Codeless without a Dev Kit

    ... power on, selected by the primary bootloader.  But how to get codeless firmware into the module without having access to the devkit? Is SUOTA via Bluetooth possible without first loading extra firmware into the module?  If not, again how to load firmware into the module without the devkit? The RA6M3 ...

    Nov 29, 2025
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